meson.build

   1 # Copyright © 2017 Intel Corporation
   2
   3 # Permission is hereby granted, free of charge, to any person obtaining a copy
   4 # of this software and associated documentation files (the "Software"), to deal
   5 # in the Software without restriction, including without limitation the rights
   6 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7 # copies of the Software, and to permit persons to whom the Software is
   8 # furnished to do so, subject to the following conditions:
   9
  10 # The above copyright notice and this permission notice shall be included in
  11 # all copies or substantial portions of the Software.
  12
  13 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  19 # SOFTWARE.
  20
  21 project(
  22   'mesa',
  23   ['c', 'cpp'],
  24   version : run_command(
  25     [find_program('python', 'python2', 'python3'), 'bin/meson_get_version.py']
  26   ).stdout(),
  27   license : 'MIT',
  28   meson_version : '>= 0.42',
  29   default_options : ['buildtype=debugoptimized', 'c_std=c99', 'cpp_std=c++11']
  30 )
  31
  32 # Arguments for the preprocessor, put these in a separate array from the C and
  33 # C++ (cpp in meson terminology) arguments since they need to be added to the
  34 # default arguments for both C and C++.
  35 pre_args = [
  36   '-D__STDC_CONSTANT_MACROS',
  37   '-D__STDC_FORMAT_MACROS',
  38   '-D__STDC_LIMIT_MACROS',
  39   '-DVERSION="@0@"'.format(meson.project_version()),
  40   '-DPACKAGE_VERSION=VERSION',
  41   '-DPACKAGE_BUGREPORT="https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa"',
  42 ]
  43
  44 with_vulkan_icd_dir = get_option('vulkan-icd-dir')
  45 with_tests = get_option('build-tests')
  46 with_valgrind = get_option('valgrind')
  47 with_libunwind = get_option('libunwind')
  48 with_asm = get_option('asm')
  49 with_osmesa = get_option('osmesa')
  50 if get_option('texture-float')
  51   pre_args += '-DTEXTURE_FLOAT_ENABLED'
  52   message('WARNING: Floating-point texture enabled. Please consult docs/patents.txt and your lawyer before building mesa.')
  53 endif
  54
  55 dri_drivers_path = get_option('dri-drivers-path')
  56 if dri_drivers_path == ''
  57   dri_drivers_path = join_paths(get_option('libdir'), 'dri')
  58 endif
  59
  60 with_gles1 = get_option('gles1')
  61 with_gles2 = get_option('gles2')
  62 with_opengl = get_option('opengl')
  63 with_any_opengl = with_opengl or with_gles1 or with_gles2
  64 # Only build shared_glapi if at least one OpenGL API is enabled
  65 with_shared_glapi = get_option('shared-glapi') and with_any_opengl
  66
  67
  68 # shared-glapi is required if at least two OpenGL APIs are being built
  69 if not with_shared_glapi
  70   if ((with_gles1 and with_gles2) or (with_gles1 and with_opengl)
  71       or (with_gles2 and with_opengl))
  72     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
  73   endif
  74 endif
  75
  76 # We require OpenGL for OpenGL ES
  77 if (with_gles1 or with_gles2) and not with_opengl
  78   error('building OpenGL ES without OpenGL is not supported.')
  79 endif
  80
  81 with_dri = false
  82 with_dri_i915 = false
  83 with_dri_i965 = false
  84 with_dri_r100 = false
  85 with_dri_r200 = false
  86 with_dri_nouveau = false
  87 with_dri_swrast = false
  88 _drivers = get_option('dri-drivers')
  89 if _drivers == 'auto'
  90   # TODO: PPC, Sparc
  91   if not ['darwin', 'windows'].contains(host_machine.system())
  92     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
  93       _drivers = 'i915,i965,r100,r200,nouveau'
  94     else
  95       error('Unknown architecture. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
  96     endif
  97   else
  98     error('Unknown OS. Please pass -Ddri-drivers to set driver options. Patches gladly accepted to fix this.')
  99   endif
 100 endif
 101 if _drivers != ''
 102   _split = _drivers.split(',')
 103   with_dri_i915 = _split.contains('i915')
 104   with_dri_i965 = _split.contains('i965')
 105   with_dri_r100 = _split.contains('r100')
 106   with_dri_r200 = _split.contains('r200')
 107   with_dri_nouveau = _split.contains('nouveau')
 108   with_dri_swrast = _split.contains('swrast')
 109   with_dri = true
 110 endif
 111
 112 with_gallium = false
 113 with_gallium_pl111 = false
 114 with_gallium_radeonsi = false
 115 with_gallium_r300 = false
 116 with_gallium_r600 = false
 117 with_gallium_nouveau = false
 118 with_gallium_freedreno = false
 119 with_gallium_softpipe = false
 120 with_gallium_vc4 = false
 121 with_gallium_vc5 = false
 122 with_gallium_etnaviv = false
 123 with_gallium_imx = false
 124 with_gallium_i915 = false
 125 with_gallium_svga = false
 126 with_gallium_virgl = false
 127 _drivers = get_option('gallium-drivers')
 128 if _drivers == 'auto'
 129   if not ['darwin', 'windows'].contains(host_machine.system())
 130     # TODO: PPC, Sparc
 131     if ['x86', 'x86_64'].contains(host_machine.cpu_family())
 132       _drivers = 'r300,r600,radeonsi,nouveau,virgl,svga,swrast'
 133     elif ['arm', 'aarch64'].contains(host_machine.cpu_family())
 134       _drivers = 'pl111,vc4,vc5,freedreno,etnaviv,imx,virgl,svga,swrast'
 135     else
 136       error('Unknown architecture. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 137     endif
 138   else
 139     error('Unknown OS. Please pass -Dgallium-drivers to set driver options. Patches gladly accepted to fix this.')
 140   endif
 141 endif
 142 if _drivers != ''
 143   _split = _drivers.split(',')
 144   with_gallium_pl111 = _split.contains('pl111')
 145   with_gallium_radeonsi = _split.contains('radeonsi')
 146   with_gallium_r300 = _split.contains('r300')
 147   with_gallium_r600 = _split.contains('r600')
 148   with_gallium_nouveau = _split.contains('nouveau')
 149   with_gallium_freedreno = _split.contains('freedreno')
 150   with_gallium_softpipe = _split.contains('swrast')
 151   with_gallium_vc4 = _split.contains('vc4')
 152   with_gallium_vc5 = _split.contains('vc5')
 153   with_gallium_etnaviv = _split.contains('etnaviv')
 154   with_gallium_imx = _split.contains('imx')
 155   with_gallium_i915 = _split.contains('i915')
 156   with_gallium_svga = _split.contains('svga')
 157   with_gallium_virgl = _split.contains('virgl')
 158   with_gallium = true
 159 endif
 160
 161 with_intel_vk = false
 162 with_amd_vk = false
 163 with_any_vk = false
 164 _vulkan_drivers = get_option('vulkan-drivers')
 165 if _vulkan_drivers == 'auto'
 166   if not ['darwin', 'windows'].contains(host_machine.system())
 167     if host_machine.cpu_family().startswith('x86')
 168       _vulkan_drivers = 'amd,intel'
 169     else
 170       error('Unknown architecture. Please pass -Dvulkan-drivers to set driver options. Patches gladly accepted to fix this.')
 171     endif
 172   else
 173     # No vulkan driver supports windows or macOS currently
 174     _vulkan_drivers = ''
 175   endif
 176 endif
 177 if _vulkan_drivers != ''
 178   _split = _vulkan_drivers.split(',')
 179   with_intel_vk = _split.contains('intel')
 180   with_amd_vk = _split.contains('amd')
 181   with_any_vk = with_amd_vk or with_intel_vk
 182 endif
 183
 184 if with_dri_swrast and with_gallium_softpipe
 185   error('Only one swrast provider can be built')
 186 endif
 187 if with_dri_i915 and with_gallium_i915
 188   error('Only one i915 provider can be built')
 189 endif
 190 if with_gallium_imx and not with_gallium_etnaviv
 191   error('IMX driver requires etnaviv driver')
 192 endif
 193
 194 dep_libdrm_intel = []
 195 if with_dri_i915 or with_gallium_i915
 196   dep_libdrm_intel = dependency('libdrm_intel', version : '>= 2.4.75')
 197 endif
 198
 199 if host_machine.system() == 'darwin'
 200   with_dri_platform = 'apple'
 201 elif ['windows', 'cygwin'].contains(host_machine.system())
 202   with_dri_platform = 'windows'
 203 elif host_machine.system() == 'linux'
 204   # FIXME: This should include BSD and possibly other systems
 205   with_dri_platform = 'drm'
 206 else
 207   # FIXME: haiku doesn't use dri, and xlib doesn't use dri, probably should
 208   # assert here that one of those cases has been met.
 209   # FIXME: GNU (hurd) ends up here as well, but meson doesn't officially
 210   # support Hurd at time of writing (2017/11)
 211   with_dri_platform = 'none'
 212 endif
 213
 214 with_platform_android = false
 215 with_platform_wayland = false
 216 with_platform_x11 = false
 217 with_platform_drm = false
 218 with_platform_surfaceless = false
 219 egl_native_platform = ''
 220 _platforms = get_option('platforms')
 221 if _platforms == 'auto'
 222   if ['linux'].contains(host_machine.system())
 223     _platforms = 'x11,wayland,drm,surfaceless'
 224   else
 225     error('Unknown OS, no platforms enabled. Patches gladly accepted to fix this.')
 226   endif
 227 endif
 228 if _platforms != ''
 229   _split = _platforms.split(',')
 230   with_platform_android = _split.contains('android')
 231   with_platform_x11 = _split.contains('x11')
 232   with_platform_wayland = _split.contains('wayland')
 233   with_platform_drm = _split.contains('drm')
 234   with_platform_surfaceless = _split.contains('surfaceless')
 235   egl_native_platform = _split[0]
 236 endif
 237
 238 with_glx = get_option('glx')
 239 if with_glx == 'auto'
 240   if with_dri
 241     with_glx = 'dri'
 242   elif with_gallium
 243     # Even when building just gallium drivers the user probably wants dri
 244     with_glx = 'dri'
 245     with_dri = true
 246   elif with_platform_x11 and with_any_opengl and not with_any_vk
 247     # The automatic behavior should not be to turn on xlib based glx when
 248     # building only vulkan drivers
 249     with_glx = 'xlib'
 250   else
 251     with_glx = 'disabled'
 252   endif
 253 endif
 254
 255 if not (with_dri or with_gallium or with_glx == 'xlib' or with_glx == 'gallium-xlib')
 256   with_gles1 = false
 257   with_gles2 = false
 258   with_opengl = false
 259   with_any_opengl = false
 260   with_shared_glapi = false
 261 endif
 262
 263 with_gbm = get_option('gbm')
 264 if with_gbm == 'auto' and with_dri  # TODO: or gallium
 265   with_gbm = host_machine.system() == 'linux'
 266 elif with_gbm == 'true'
 267   if not ['linux', 'bsd'].contains(host_machine.system())
 268     error('GBM only supports unix-like platforms')
 269   endif
 270   with_gbm = true
 271 else
 272   with_gbm = false
 273 endif
 274
 275 _egl = get_option('egl')
 276 if _egl == 'auto'
 277   with_egl = with_dri and with_shared_glapi and egl_native_platform != ''
 278 elif _egl == 'true'
 279   if not with_dri
 280     error('EGL requires dri')
 281   elif not with_shared_glapi
 282     error('EGL requires shared-glapi')
 283   elif egl_native_platform == ''
 284     error('No platforms specified, consider -Dplatforms=drm,x11 at least')
 285   endif
 286   with_egl = true
 287 else
 288   with_egl = false
 289 endif
 290
 291 if with_egl and not (with_platform_drm or with_platform_surfaceless)
 292   if with_gallium_radeonsi
 293     error('RadeonSI requires drm or surfaceless platform when using EGL')
 294   endif
 295   if with_gallium_virgl
 296     error('Virgl requires drm or surfaceless platform when using EGL')
 297   endif
 298 endif
 299
 300 pre_args += '-DGLX_USE_TLS'
 301 if with_glx != 'disabled'
 302   if not (with_platform_x11 and with_any_opengl)
 303     if with_glx == 'auto'
 304       with_glx = 'disabled'
 305     else
 306       error('Cannot build GLX support without X11 platform support and at least one OpenGL API')
 307     endif
 308   elif with_glx == 'gallium-xlib'
 309     if not with_gallium
 310       error('Gallium-xlib based GLX requires at least one gallium driver')
 311     elif not with_gallium_softpipe
 312       error('Gallium-xlib based GLX requires softpipe or llvmpipe.')
 313     elif with_dri
 314       error('gallium-xlib conflicts with any dri driver')
 315     endif
 316   elif with_glx == 'xlib'
 317     if with_dri
 318       error('xlib conflicts with any dri driver')
 319     endif
 320   elif with_glx == 'dri' and not with_dri
 321     error('dri based GLX requires at least one DRI driver')
 322   endif
 323 endif
 324
 325 with_glvnd = get_option('glvnd')
 326 if with_glvnd
 327   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 328     error('Cannot build glvnd support for GLX that is not DRI based.')
 329   elif with_glx == 'disabled' and not with_egl
 330     error('glvnd requires DRI based GLX and/or EGL')
 331   endif
 332 endif
 333
 334 # TODO: toggle for this
 335 with_glx_direct = true
 336
 337 if with_vulkan_icd_dir == ''
 338   with_vulkan_icd_dir = join_paths(get_option('datadir'), 'vulkan/icd.d')
 339 endif
 340
 341 with_dri2 = (with_dri or with_any_vk) and with_dri_platform == 'drm'
 342 with_dri3 = get_option('dri3')
 343 if with_dri3 == 'auto'
 344   if host_machine.system() == 'linux' and with_dri2
 345     with_dri3 = true
 346   else
 347     with_dri3 = false
 348  endif
 349 elif with_dri3 == 'true'
 350   with_dri3 = true
 351 else
 352   with_dri3 = false
 353 endif
 354
 355 if with_any_vk and (with_platform_x11 and not with_dri3)
 356   error('Vulkan drivers require dri3 for X11 support')
 357 endif
 358 if with_dri or with_gallium
 359   if with_glx == 'disabled' and not with_egl
 360     error('building dri or gallium drivers require at least one window system')
 361   endif
 362 endif
 363
 364 dep_vdpau = []
 365 _vdpau = get_option('gallium-vdpau')
 366 if _vdpau == 'auto'
 367   if not ['linux', 'bsd'].contains(host_machine.system())
 368     with_gallium_vdpau = false
 369   elif not with_platform_x11
 370     with_gallium_vdpau = false
 371   elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 372             with_gallium_nouveau)
 373     with_gallium_vdpau = false
 374   else
 375     dep_vdpau = dependency('vdpau', version : '>= 1.1', required : false)
 376     with_gallium_vdpau = dep_vdpau.found()
 377   endif
 378 elif _vdpau == 'true'
 379   if not ['linux', 'bsd'].contains(host_machine.system())
 380     error('VDPAU state tracker can only be build on unix-like OSes.')
 381   elif not with_platform_x11
 382     error('VDPAU state tracker requires X11 support.')
 383     with_gallium_vdpau = false
 384   elif not (with_gallium_r300 or with_gallium_r600 or with_gallium_radeonsi or
 385             with_gallium_nouveau)
 386     error('VDPAU state tracker requires at least one of the following gallium drivers: r300, r600, radeonsi, nouveau.')
 387   endif
 388   dep_vdpau = dependency('vdpau', version : '>= 1.1')
 389   with_gallium_vdpau = true
 390 else
 391   with_gallium_vdpau = false
 392 endif
 393 if with_gallium_vdpau
 394   dep_vdpau = declare_dependency(
 395     compile_args : dep_vdpau.get_pkgconfig_variable('cflags').split()
 396   )
 397 endif
 398
 399 if with_gallium_vdpau
 400   pre_args += '-DHAVE_ST_VDPAU'
 401 endif
 402 vdpau_drivers_path = get_option('vdpau-libs-path')
 403 if vdpau_drivers_path == ''
 404   vdpau_drivers_path = join_paths(get_option('libdir'), 'vdpau')
 405 endif
 406
 407 dep_xvmc = []
 408 _xvmc = get_option('gallium-xvmc')
 409 if _xvmc == 'auto'
 410   if not ['linux', 'bsd'].contains(host_machine.system())
 411     with_gallium_xvmc = false
 412   elif not with_platform_x11
 413     with_gallium_xvmc = false
 414   elif not (with_gallium_r600 or with_gallium_nouveau)
 415     with_gallium_xvmc = false
 416   else
 417     dep_xvmc = dependency('xvmc', version : '>= 1.0.6', required : false)
 418     with_gallium_xvmc = dep_xvmc.found()
 419   endif
 420 elif _xvmc == 'true'
 421   if not ['linux', 'bsd'].contains(host_machine.system())
 422     error('XVMC state tracker can only be build on unix-like OSes.')
 423   elif not with_platform_x11
 424     error('XVMC state tracker requires X11 support.')
 425     with_gallium_xvmc = false
 426   elif not (with_gallium_r600 or with_gallium_nouveau)
 427     error('XVMC state tracker requires at least one of the following gallium drivers: r600, nouveau.')
 428   endif
 429   dep_xvmc = dependency('xvmc', version : '>= 1.0.6')
 430   with_gallium_xvmc = true
 431 else
 432   with_gallium_xvmc = false
 433 endif
 434 if with_gallium_xvmc
 435   dep_xvmc = declare_dependency(
 436     compile_args : dep_xvmc.get_pkgconfig_variable('cflags').split()
 437   )
 438 endif
 439
 440 xvmc_drivers_path = get_option('xvmc-libs-path')
 441 if xvmc_drivers_path == ''
 442   xvmc_drivers_path = get_option('libdir')
 443 endif
 444
 445 dep_omx = []
 446 _omx = get_option('gallium-omx')
 447 if _omx == 'auto'
 448   if not ['linux', 'bsd'].contains(host_machine.system())
 449     with_gallium_omx = false
 450   elif not with_platform_x11
 451     with_gallium_omx = false
 452   elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 453     with_gallium_omx = false
 454   else
 455     dep_omx = dependency('libomxil-bellagio', required : false)
 456     with_gallium_omx = dep_omx.found()
 457   endif
 458 elif _omx == 'true'
 459   if not ['linux', 'bsd'].contains(host_machine.system())
 460     error('OMX state tracker can only be built on unix-like OSes.')
 461   elif not (with_platform_x11 or with_platform_drm)
 462     error('OMX state tracker requires X11 or drm platform support.')
 463     with_gallium_omx = false
 464   elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 465     error('OMX state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 466   endif
 467   dep_omx = dependency('libomxil-bellagio')
 468   with_gallium_omx = true
 469 else
 470   with_gallium_omx = false
 471 endif
 472
 473 omx_drivers_path = get_option('omx-libs-path')
 474 if with_gallium_omx
 475   # Figure out where to put the omx driver.
 476   # FIXME: this could all be vastly simplified by adding a 'defined_variable'
 477   # argument to meson's get_pkgconfig_variable method.
 478   if omx_drivers_path == ''
 479     _omx_libdir = dep_omx.get_pkgconfig_variable('libdir')
 480     _omx_drivers_dir = dep_omx.get_pkgconfig_variable('pluginsdir')
 481     if _omx_libdir == get_option('libdir')
 482       omx_drivers_path = _omx_drivers_dir
 483     else
 484       _omx_base_dir = []
 485       # This will fail on windows. Does OMX run on windows?
 486       _omx_libdir = _omx_libdir.split('/')
 487       _omx_drivers_dir = _omx_drivers_dir.split('/')
 488       foreach o : _omx_drivers_dir
 489         if not _omx_libdir.contains(o)
 490           _omx_base_dir += o
 491         endif
 492       endforeach
 493       omx_drivers_path = join_paths(get_option('libdir'), _omx_base_dir)
 494     endif
 495   endif
 496 endif
 497 if with_gallium_omx
 498   dep_omx = declare_dependency(
 499     compile_args : dep_omx.get_pkgconfig_variable('cflags').split()
 500   )
 501 endif
 502
 503 dep_va = []
 504 _va = get_option('gallium-va')
 505 if _va == 'auto'
 506   if not ['linux', 'bsd'].contains(host_machine.system())
 507     with_gallium_va = false
 508   elif not with_platform_x11
 509     with_gallium_va = false
 510   elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 511     with_gallium_va = false
 512   else
 513     dep_va = dependency('libva', version : '>= 0.38.0', required : false)
 514     with_gallium_va = dep_va.found()
 515   endif
 516 elif _va == 'true'
 517   if not ['linux', 'bsd'].contains(host_machine.system())
 518     error('VA state tracker can only be built on unix-like OSes.')
 519   elif not (with_platform_x11 or with_platform_drm)
 520     error('VA state tracker requires X11 or drm or wayland platform support.')
 521     with_gallium_va = false
 522   elif not (with_gallium_r600 or with_gallium_radeonsi or with_gallium_nouveau)
 523     error('VA state tracker requires at least one of the following gallium drivers: r600, radeonsi, nouveau.')
 524   endif
 525   dep_va = dependency('libva', version : '>= 0.38.0')
 526   with_gallium_va = true
 527 else
 528   with_gallium_va = false
 529 endif
 530 if with_gallium_va
 531   dep_va = declare_dependency(
 532     compile_args : dep_va.get_pkgconfig_variable('cflags').split()
 533   )
 534 endif
 535
 536 va_drivers_path = get_option('va-libs-path')
 537 if va_drivers_path == ''
 538   va_drivers_path = join_paths(get_option('libdir'), 'dri')
 539 endif
 540
 541 _xa = get_option('gallium-xa')
 542 if _xa == 'auto'
 543   if not ['linux', 'bsd'].contains(host_machine.system())
 544     with_gallium_xa = false
 545   elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 546             or with_gallium_svga)
 547     with_gallium_xa = false
 548   else
 549     with_gallium_xa = true
 550   endif
 551 elif _xa == 'true'
 552   if not ['linux', 'bsd'].contains(host_machine.system())
 553     error('XA state tracker can only be built on unix-like OSes.')
 554   elif not (with_gallium_nouveau or with_gallium_freedreno or with_gallium_i915
 555             or with_gallium_svga)
 556     error('XA state tracker requires at least one of the following gallium drivers: nouveau, freedreno, i915, svga.')
 557   endif
 558   with_gallium_xa = true
 559 else
 560   with_gallium_xa = false
 561 endif
 562
 563 d3d_drivers_path = get_option('d3d-drivers-path')
 564 if d3d_drivers_path == ''
 565   d3d_drivers_path = join_paths(get_option('libdir'), 'd3d')
 566 endif
 567
 568 with_gallium_st_nine =  get_option('gallium-nine')
 569 if with_gallium_st_nine
 570   if not with_gallium_softpipe
 571     error('The nine state tracker requires gallium softpipe/llvmpipe.')
 572   elif not (with_gallium_radeonsi or with_gallium_nouveau or with_gallium_r600
 573             or with_gallium_r300 or with_gallium_svga or with_gallium_i915)
 574     error('The nine state tracker requires at least on non-swrast gallium driver.')
 575   endif
 576   if not with_dri3
 577     error('Using nine with wine requires dri3')
 578   endif
 579 endif
 580
 581 gl_pkgconfig_c_flags = []
 582 if with_platform_x11
 583   if with_any_vk or (with_glx == 'dri' and with_dri_platform == 'drm')
 584     pre_args += '-DHAVE_X11_PLATFORM'
 585   endif
 586   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
 587     pre_args += '-DUSE_XSHM'
 588   else
 589     pre_args += '-DGLX_INDIRECT_RENDERING'
 590     if with_glx_direct
 591       pre_args += '-DGLX_DIRECT_RENDERING'
 592     endif
 593     if with_dri_platform == 'drm'
 594       pre_args += '-DGLX_USE_DRM'
 595     elif with_dri_platform == 'windows'
 596       pre_args += '-DGLX_USE_WINDOWSGL'
 597     endif
 598   endif
 599 else
 600   pre_args += '-DMESA_EGL_NO_X11_HEADERS'
 601   gl_pkgconfig_c_flags += '-DMESA_EGL_NO_X11_HEADERS'
 602 endif
 603 if with_platform_drm
 604   if with_egl and not with_gbm
 605     error('EGL drm platform requires gbm')
 606   endif
 607   pre_args += '-DHAVE_DRM_PLATFORM'
 608 endif
 609 if with_platform_surfaceless
 610   pre_args += '-DHAVE_SURFACELESS_PLATFORM'
 611 endif
 612 if with_platform_android
 613   dep_android = [
 614     dependency('cutils'),
 615     dependency('hardware'),
 616     dependency('sync'),
 617   ]
 618   pre_args += '-DHAVE_ANDROID_PLATFORM'
 619 endif
 620
 621 prog_python2 = find_program('python2')
 622 has_mako = run_command(prog_python2, '-c', 'import mako')
 623 if has_mako.returncode() != 0
 624   error('Python (2.x) mako module required to build mesa.')
 625 endif
 626
 627 cc = meson.get_compiler('c')
 628 if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.4.6')
 629   error('When using GCC, version 4.4.6 or later is required.')
 630 endif
 631
 632 # Define DEBUG for debug builds only (debugoptimized is not included on this one)
 633 if get_option('buildtype') == 'debug'
 634   pre_args += '-DDEBUG'
 635 endif
 636
 637 if get_option('shader-cache')
 638   pre_args += '-DENABLE_SHADER_CACHE'
 639 elif with_amd_vk
 640   error('Radv requires shader cache support')
 641 endif
 642
 643 # Check for GCC style builtins
 644 foreach b : ['bswap32', 'bswap64', 'clz', 'clzll', 'ctz', 'expect', 'ffs',
 645              'ffsll', 'popcount', 'popcountll', 'unreachable']
 646   if cc.has_function(b)
 647     pre_args += '-DHAVE___BUILTIN_@0@'.format(b.to_upper())
 648   endif
 649 endforeach
 650
 651 # check for GCC __attribute__
 652 foreach a : ['const', 'flatten', 'malloc', 'pure', 'unused',
 653              'warn_unused_result', 'weak',]
 654   if cc.compiles('int foo(void) __attribute__((@0@));'.format(a),
 655                  name : '__attribute__((@0@))'.format(a))
 656     pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
 657   endif
 658 endforeach
 659 if cc.compiles('int foo(const char *p, ...) __attribute__((format(printf, 1, 2)));',
 660                name : '__attribute__((format(...)))')
 661   pre_args += '-DHAVE_FUNC_ATTRIBUTE_FORMAT'
 662 endif
 663 if cc.compiles('struct __attribute__((packed)) foo { int bar; };',
 664                name : '__attribute__((packed))')
 665   pre_args += '-DHAVE_FUNC_ATTRIBUTE_PACKED'
 666 endif
 667 if cc.compiles('int *foo(void) __attribute__((returns_nonnull));',
 668                name : '__attribute__((returns_nonnull))')
 669   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NONNULL'
 670 endif
 671 if cc.compiles('''int foo_def(void) __attribute__((visibility("default")));
 672                   int foo_hid(void) __attribute__((visibility("hidden")));
 673                   int foo_int(void) __attribute__((visibility("internal")));
 674                   int foo_pro(void) __attribute__((visibility("protected")));''',
 675                name : '__attribute__((visibility(...)))')
 676   pre_args += '-DHAVE_FUNC_ATTRIBUTE_VISBILITY'
 677 endif
 678 if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias("foo")));',
 679                name : '__attribute__((alias(...)))')
 680   pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS'
 681 endif
 682 if cc.compiles('int foo(void) __attribute__((__noreturn__));',
 683                name : '__attribute__((__noreturn__))')
 684   pre_args += '-DHAVE_FUNC_ATTRIBUTE_NORETURN'
 685 endif
 686
 687 # TODO: this is very incomplete
 688 if ['linux', 'cygwin'].contains(host_machine.system())
 689   pre_args += '-D_GNU_SOURCE'
 690 endif
 691
 692 # Check for generic C arguments
 693 c_args = []
 694 foreach a : ['-Wall', '-Werror=implicit-function-declaration',
 695              '-Werror=missing-prototypes', '-fno-math-errno',
 696              '-fno-trapping-math', '-Qunused-arguments']
 697   if cc.has_argument(a)
 698     c_args += a
 699   endif
 700 endforeach
 701 c_vis_args = []
 702 if cc.has_argument('-fvisibility=hidden')
 703   c_vis_args += '-fvisibility=hidden'
 704 endif
 705
 706 # Check for generic C++ arguments
 707 cpp = meson.get_compiler('cpp')
 708 cpp_args = []
 709 foreach a : ['-Wall', '-fno-math-errno', '-fno-trapping-math',
 710              '-Qunused-arguments']
 711   if cpp.has_argument(a)
 712     cpp_args += a
 713   endif
 714 endforeach
 715
 716 # For some reason, the test for -Wno-foo always succeeds with gcc, even if the
 717 # option is not supported. Hence, check for -Wfoo instead.
 718 if cpp.has_argument('-Wnon-virtual-dtor')
 719   cpp_args += '-Wno-non-virtual-dtor'
 720 endif
 721
 722 no_override_init_args = []
 723 foreach a : ['override-init', 'initializer-overrides']
 724   if cc.has_argument('-W' + a)
 725     no_override_init_args += '-Wno-' + a
 726   endif
 727 endforeach
 728
 729 cpp_vis_args = []
 730 if cpp.has_argument('-fvisibility=hidden')
 731   cpp_vis_args += '-fvisibility=hidden'
 732 endif
 733
 734 # Check for C and C++ arguments for MSVC2013 compatibility. These are only used
 735 # in parts of the mesa code base that need to compile with old versions of
 736 # MSVC, mainly common code
 737 c_msvc_compat_args = []
 738 cpp_msvc_compat_args = []
 739 foreach a : ['-Werror=pointer-arith', '-Werror=vla']
 740   if cc.has_argument(a)
 741     c_msvc_compat_args += a
 742   endif
 743   if cpp.has_argument(a)
 744     cpp_msvc_compat_args += a
 745   endif
 746 endforeach
 747
 748 if host_machine.cpu_family().startswith('x86')
 749   pre_args += '-DHAVE_SSE41'
 750   with_sse41 = true
 751   sse41_args = ['-msse4.1']
 752
 753   # GCC on x86 (not x86_64) with -msse* assumes a 16 byte aligned stack, but
 754   # that's not guaranteed
 755   if host_machine.cpu_family() == 'x86'
 756     sse41_args += '-mstackrealign'
 757   endif
 758 else
 759   with_sse41 = false
 760   sse41_args = []
 761 endif
 762
 763 # Check for GCC style atomics
 764 if cc.compiles('int main() { int n; return __atomic_load_n(&n, __ATOMIC_ACQUIRE); }',
 765                name : 'GCC atomic builtins')
 766   pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
 767 endif
 768 if not cc.links('''#include <stdint.h>
 769                    uint64_t v;
 770                    int main() {
 771                      return __sync_add_and_fetch(&v, (uint64_t)1);
 772                    }''',
 773                 name : 'GCC 64bit atomics')
 774   pre_args += '-DMISSING_64_BIT_ATOMICS'
 775 endif
 776
 777 # TODO: endian
 778 # TODO: powr8
 779 # TODO: shared/static? Is this even worth doing?
 780
 781 # Building x86 assembly code requires running x86 binaries. It is possible for
 782 # x86_64 OSes to run x86 binaries, so don't disable asm in those cases
 783 # TODO: it should be possible to use an exe_wrapper to run the binary during
 784 # the build.
 785 if meson.is_cross_build()
 786   if not (build_machine.cpu_family() == 'x86_64' and host_machine.cpu_family() == 'x86'
 787           and build_machine.system() == host_machine.system())
 788     message('Cross compiling to x86 from non-x86, disabling asm')
 789     with_asm = false
 790   endif
 791 endif
 792
 793 with_asm_arch = ''
 794 if with_asm
 795   # TODO: SPARC and PPC
 796   if host_machine.cpu_family() == 'x86'
 797     if ['linux', 'bsd'].contains(host_machine.system()) # FIXME: hurd?
 798       with_asm_arch = 'x86'
 799       pre_args += ['-DUSE_X86_ASM', '-DUSE_MMX_ASM', '-DUSE_3DNOW_ASM',
 800                    '-DUSE_SSE_ASM']
 801     endif
 802   elif host_machine.cpu_family() == 'x86_64'
 803     if host_machine.system() == 'linux'
 804       with_asm_arch = 'x86_64'
 805       pre_args += ['-DUSE_X86_64_ASM']
 806     endif
 807   elif host_machine.cpu_family() == 'arm'
 808     if host_machine.system() == 'linux'
 809       with_asm_arch = 'arm'
 810       pre_args += ['-DUSE_ARM_ASM']
 811     endif
 812   elif host_machine.cpu_family() == 'aarch64'
 813     if host_machine.system() == 'linux'
 814       with_asm_arch = 'aarch64'
 815       pre_args += ['-DUSE_AARCH64_ASM']
 816     endif
 817   endif
 818 endif
 819
 820 # Check for standard headers and functions
 821 if cc.has_header_symbol('sys/sysmacros.h', 'major')
 822   pre_args += '-DMAJOR_IN_SYSMACROS'
 823 elif cc.has_header_symbol('sys/mkdev.h', 'major')
 824   pre_args += '-DMAJOR_IN_MKDEV'
 825 endif
 826
 827 foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h']
 828   if cc.has_header(h)
 829     pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
 830   endif
 831 endforeach
 832
 833 foreach f : ['strtof', 'mkostemp', 'posix_memalign', 'timespec_get', 'memfd_create']
 834   if cc.has_function(f)
 835     pre_args += '-DHAVE_@0@'.format(f.to_upper())
 836   endif
 837 endforeach
 838
 839 # strtod locale support
 840 if cc.links('''
 841     #define _GNU_SOURCE
 842     #include <stdlib.h>
 843     #include <locale.h>
 844     #ifdef HAVE_XLOCALE_H
 845     #include <xlocale.h>
 846     #endif
 847     int main() {
 848       locale_t loc = newlocale(LC_CTYPE_MASK, "C", NULL);
 849       const char *s = "1.0";
 850       char *end;
 851       double d = strtod_l(s, end, loc);
 852       float f = strtof_l(s, end, loc);
 853       freelocale(loc);
 854       return 0;
 855     }''',
 856     extra_args : pre_args,
 857     name : 'strtod has locale support')
 858   pre_args += '-DHAVE_STRTOD_L'
 859 endif
 860
 861 # Check for some linker flags
 862 ld_args_bsymbolic = []
 863 if cc.links('int main() { return 0; }', args : '-Wl,-Bsymbolic', name : 'Bsymbolic')
 864   ld_args_bsymbolic += '-Wl,-Bsymbolic'
 865 endif
 866 ld_args_gc_sections = []
 867 if cc.links('static char unused() { return 5; } int main() { return 0; }',
 868             args : '-Wl,--gc-sections', name : 'gc-sections')
 869   ld_args_gc_sections += '-Wl,--gc-sections'
 870 endif
 871 with_ld_version_script = false
 872 if cc.links('int main() { return 0; }',
 873             args : '-Wl,--version-script=@0@'.format(
 874               join_paths(meson.source_root(), 'build-support/conftest.map')),
 875             name : 'version-script')
 876   with_ld_version_script = true
 877 endif
 878 with_ld_dynamic_list = false
 879 if cc.links('int main() { return 0; }',
 880             args : '-Wl,--dynamic-list=@0@'.format(
 881               join_paths(meson.source_root(), 'build-support/conftest.dyn')),
 882             name : 'dynamic-list')
 883   with_ld_dynamic_list = true
 884 endif
 885
 886 # check for dl support
 887 if cc.has_function('dlopen')
 888   dep_dl = []
 889 else
 890   dep_dl = cc.find_library('dl')
 891 endif
 892 if cc.has_function('dladdr', dependencies : dep_dl)
 893   # This is really only required for megadrivers
 894   pre_args += '-DHAVE_DLADDR'
 895 endif
 896
 897 if cc.has_function('dl_iterate_phdr')
 898   pre_args += '-DHAVE_DL_ITERATE_PHDR'
 899 elif with_intel_vk
 900   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
 901 elif with_dri_i965 and get_option('shader-cache')
 902   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
 903 endif
 904
 905 # Determine whether or not the rt library is needed for time functions
 906 if cc.has_function('clock_gettime')
 907   dep_clock = []
 908 else
 909   dep_clock = cc.find_library('rt')
 910 endif
 911
 912 with_gallium_drisw_kms = false
 913 dep_libdrm = dependency('libdrm', version : '>= 2.4.75',
 914                         required : with_dri2 or with_dri3)
 915 if dep_libdrm.found()
 916   pre_args += '-DHAVE_LIBDRM'
 917   if with_dri_platform == 'drm' and with_dri
 918     with_gallium_drisw_kms = true
 919   endif
 920 endif
 921
 922 # TODO: some of these may be conditional
 923 dep_zlib = dependency('zlib', version : '>= 1.2.3')
 924 dep_thread = dependency('threads')
 925 if dep_thread.found() and host_machine.system() != 'windows'
 926   pre_args += '-DHAVE_PTHREAD'
 927 endif
 928 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600 # TODO: clover
 929   dep_elf = dependency('libelf', required : false)
 930   if not dep_elf.found()
 931     dep_elf = cc.find_library('elf')
 932   endif
 933 else
 934   dep_elf = []
 935 endif
 936 dep_expat = dependency('expat')
 937 # this only exists on linux so either this is linux and it will be found, or
 938 # its not linux and and wont
 939 dep_m = cc.find_library('m', required : false)
 940
 941 dep_libdrm_amdgpu = []
 942 dep_libdrm_radeon = []
 943 dep_libdrm_nouveau = []
 944 dep_libdrm_etnaviv = []
 945 dep_libdrm_freedreno = []
 946 if with_amd_vk or with_gallium_radeonsi
 947   dep_libdrm_amdgpu = dependency('libdrm_amdgpu', version : '>= 2.4.88')
 948 endif
 949 if (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
 950     with_gallium_r300 or with_gallium_r600)
 951   dep_libdrm_radeon = dependency('libdrm_radeon', version : '>= 2.4.71')
 952 endif
 953 if with_gallium_nouveau or with_dri_nouveau
 954   dep_libdrm_nouveau = dependency('libdrm_nouveau', version : '>= 2.4.66')
 955 endif
 956 if with_gallium_etnaviv
 957   dep_libdrm_etnaviv = dependency('libdrm_etnaviv', version : '>= 2.4.82')
 958 endif
 959 if with_gallium_freedreno
 960   dep_libdrm_freedreno = dependency('libdrm_freedreno', version : '>= 2.4.74')
 961 endif
 962
 963 llvm_modules = ['bitwriter', 'engine', 'mcdisassembler', 'mcjit']
 964 if with_amd_vk or with_gallium_radeonsi or with_gallium_r600
 965   llvm_modules += ['amdgpu', 'bitreader', 'ipo']
 966   if with_gallium_r600
 967     llvm_modules += 'asmparser'
 968   endif
 969 endif
 970
 971 _llvm = get_option('llvm')
 972 if _llvm == 'auto'
 973   dep_llvm = dependency(
 974     'llvm', version : '>= 3.9.0', modules : llvm_modules,
 975     required : with_amd_vk or with_gallium_radeonsi,
 976   )
 977   with_llvm = dep_llvm.found()
 978 elif _llvm == 'true'
 979   dep_llvm = dependency('llvm', version : '>= 3.9.0', modules : llvm_modules)
 980   with_llvm = true
 981 else
 982   dep_llvm = []
 983   with_llvm = false
 984 endif
 985 if with_llvm
 986   _llvm_version = dep_llvm.version().split('.')
 987   # Development versions of LLVM have an 'svn' suffix, we don't want that for
 988   # our version checks.
 989   _llvm_patch = _llvm_version[2]
 990   if _llvm_patch.endswith('svn')
 991     _llvm_patch = _llvm_patch.split('s')[0]
 992   endif
 993   pre_args += [
 994     '-DHAVE_LLVM=0x0@0@@1@@2@'.format(_llvm_version[0], _llvm_version[1], _llvm_patch),
 995     '-DMESA_LLVM_VERSION_PATCH=@0@'.format(_llvm_patch),
 996   ]
 997 elif with_amd_vk or with_gallium_radeonsi
 998   error('The following drivers requires LLVM: Radv, RadeonSI. One of these is enabled, but LLVM is disabled.')
 999 endif
1000
1001 dep_glvnd = []
1002 if with_glvnd
1003   dep_glvnd = dependency('libglvnd', version : '>= 0.2.0')
1004   pre_args += '-DUSE_LIBGLVND=1'
1005 endif
1006
1007 if with_valgrind != 'false'
1008   dep_valgrind = dependency('valgrind', required : with_valgrind == 'true')
1009   if dep_valgrind.found()
1010     pre_args += '-DHAVE_VALGRIND'
1011   endif
1012 else
1013   dep_valgrind = []
1014 endif
1015
1016 # pthread stubs. Lets not and say we didn't
1017
1018 prog_bison = find_program('bison', required : with_any_opengl)
1019 prog_flex = find_program('flex', required : with_any_opengl)
1020
1021 dep_selinux = []
1022 if get_option('selinux')
1023   dep_selinux = dependency('libselinux')
1024   pre_args += '-DMESA_SELINUX'
1025 endif
1026
1027 # TODO: llvm-prefix and llvm-shared-libs
1028
1029 if with_libunwind != 'false'
1030   dep_unwind = dependency('libunwind', required : with_libunwind == 'true')
1031   if dep_unwind.found()
1032     pre_args += '-DHAVE_LIBUNWIND'
1033   endif
1034 else
1035   dep_unwind = []
1036 endif
1037
1038 # TODO: gallium-hud
1039
1040 if with_osmesa != 'none'
1041   if with_osmesa == 'classic' and not with_dri_swrast
1042     error('OSMesa classic requires dri (classic) swrast.')
1043   endif
1044   if with_osmesa == 'gallium' and not with_gallium_softpipe
1045     error('OSMesa gallium requires gallium softpipe or llvmpipe.')
1046   endif
1047   osmesa_lib_name = 'OSMesa'
1048   osmesa_bits = get_option('osmesa-bits')
1049   if osmesa_bits != '8'
1050     if with_dri or with_glx != 'disabled'
1051       error('OSMesa bits must be 8 if building glx or dir based drivers')
1052     endif
1053     osmesa_lib_name = osmesa_lib_name + osmesa_bits
1054     pre_args += [
1055       '-DCHAN_BITS=@0@'.format(osmesa_bits), '-DDEFAULT_SOFTWARE_DEPTH_BITS=31'
1056     ]
1057   endif
1058 endif
1059
1060 # TODO: symbol mangling
1061
1062 if with_platform_wayland
1063   prog_wl_scanner = find_program('wayland-scanner')
1064   dep_wl_protocols = dependency('wayland-protocols', version : '>= 1.8')
1065   dep_wayland_client = dependency('wayland-client', version : '>=1.11')
1066   dep_wayland_server = dependency('wayland-server', version : '>=1.11')
1067   wayland_dmabuf_xml = join_paths(
1068     dep_wl_protocols.get_pkgconfig_variable('pkgdatadir'), 'unstable',
1069     'linux-dmabuf', 'linux-dmabuf-unstable-v1.xml'
1070   )
1071   pre_args += ['-DHAVE_WAYLAND_PLATFORM', '-DWL_HIDE_DEPRECATED']
1072 else
1073   prog_wl_scanner = []
1074   dep_wl_protocols = []
1075   dep_wayland_client = []
1076   dep_wayland_server = []
1077   wayland_dmabuf_xml = ''
1078 endif
1079
1080 dep_x11 = []
1081 dep_xext = []
1082 dep_xdamage = []
1083 dep_xfixes = []
1084 dep_x11_xcb = []
1085 dep_xcb = []
1086 dep_xcb_glx = []
1087 dep_xcb_dri2 = []
1088 dep_xcb_dri3 = []
1089 dep_dri2proto = []
1090 dep_glproto = []
1091 dep_xxf86vm = []
1092 dep_xcb_dri3 = []
1093 dep_xcb_present = []
1094 dep_xcb_sync = []
1095 dep_xcb_xfixes = []
1096 dep_xshmfence = []
1097 if with_platform_x11
1098   if with_glx == 'xlib' or with_glx == 'gallium-xlib'
1099     dep_x11 = dependency('x11')
1100     dep_xext = dependency('xext')
1101     dep_xcb = dependency('xcb')
1102   elif with_glx == 'dri'
1103     dep_x11 = dependency('x11')
1104     dep_xext = dependency('xext')
1105     dep_xdamage = dependency('xdamage', version : '>= 1.1')
1106     dep_xfixes = dependency('xfixes')
1107     dep_xcb_glx = dependency('xcb-glx', version : '>= 1.8.1')
1108     dep_xxf86vm = dependency('xxf86vm', required : false)
1109   endif
1110   if with_any_vk or with_glx == 'dri' or
1111       (with_gallium_vdpau or with_gallium_xvmc or with_gallium_omx or
1112        with_gallium_xa)
1113     dep_xcb = dependency('xcb')
1114     dep_x11_xcb = dependency('x11-xcb')
1115   endif
1116   if with_any_vk or (with_glx == 'dri' and with_dri_platform == 'drm')
1117     dep_xcb_dri2 = dependency('xcb-dri2', version : '>= 1.8')
1118
1119     if with_dri3
1120       pre_args += '-DHAVE_DRI3'
1121       dep_xcb_dri3 = dependency('xcb-dri3')
1122       dep_xcb_present = dependency('xcb-present')
1123       dep_xcb_sync = dependency('xcb-sync')
1124       dep_xshmfence = dependency('xshmfence', version : '>= 1.1')
1125     endif
1126   endif
1127   if with_glx == 'dri'
1128     if with_dri_platform == 'drm'
1129       dep_dri2proto = dependency('dri2proto', version : '>= 2.8')
1130     endif
1131     dep_glproto = dependency('glproto', version : '>= 1.4.14')
1132   endif
1133   if with_egl
1134     dep_xcb_xfixes = dependency('xcb-xfixes')
1135   endif
1136 endif
1137
1138 if get_option('gallium-extra-hud')
1139   pre_args += '-DHAVE_GALLIUM_EXTRA_HUD=1'
1140 endif
1141
1142 _sensors = get_option('lmsensors')
1143 if _sensors != 'false'
1144   dep_lmsensors = cc.find_library('libsensors', required : _sensors == 'true')
1145   if dep_lmsensors.found()
1146     pre_args += '-DHAVE_LIBSENSORS=1'
1147   endif
1148 else
1149   dep_lmsensors = []
1150 endif
1151
1152 # TODO: clover
1153
1154 # TODO: gallium tests
1155
1156 # TODO: various libdirs
1157
1158 # TODO: swr
1159
1160 # TODO: gallium driver dirs
1161
1162 # FIXME: this is a workaround for #2326
1163 prog_touch = find_program('touch')
1164 dummy_cpp = custom_target(
1165   'dummy_cpp',
1166   output : 'dummy.cpp',
1167   command : [prog_touch, '@OUTPUT@'],
1168 )
1169
1170 foreach a : pre_args
1171   add_project_arguments(a, language : ['c', 'cpp'])
1172 endforeach
1173 foreach a : c_args
1174   add_project_arguments(a, language : ['c'])
1175 endforeach
1176 foreach a : cpp_args
1177   add_project_arguments(a, language : ['cpp'])
1178 endforeach
1179
1180 inc_include = include_directories('include')
1181
1182 gl_priv_reqs = [
1183   'x11', 'xext', 'xdamage >= 1.1', 'xfixes', 'x11-xcb', 'xcb',
1184   'xcb-glx >= 1.8.1', 'libdrm >= 2.4.75',
1185 ]
1186 if dep_xxf86vm != [] and dep_xxf86vm.found()
1187   gl_priv_reqs += 'xxf86vm'
1188 endif
1189 if with_dri_platform == 'drm'
1190   gl_priv_reqs += 'xcb-dri2 >= 1.8'
1191 endif
1192
1193 gl_priv_libs = []
1194 if dep_thread.found()
1195   gl_priv_libs += ['-lpthread', '-pthread']
1196 endif
1197 if dep_m.found()
1198   gl_priv_libs += '-lm'
1199 endif
1200 if dep_dl != [] and dep_dl.found()
1201   gl_priv_libs += '-ldl'
1202 endif
1203
1204 pkg = import('pkgconfig')
1205
1206 subdir('include')
1207 subdir('bin')
1208 subdir('src')